51979011 has 24 divisors (see below), whose sum is σ = 82817280. Its totient is φ = 28404816.

The previous prime is 51979001. The next prime is 51979019. The reversal of 51979011 is 11097915.

It is a happy number.

It is not a de Polignac number, because 51979011 - 2⁶ = 51978947 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51979019) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8770 + ... + 13448.

It is an arithmetic number, because the mean of its divisors is an integer number (3450720).

Almost surely, 2^51979011 is an apocalyptic number.

51979011 is a deficient number, since it is larger than the sum of its proper divisors (30838269).

51979011 is a wasteful number, since it uses less digits than its factorization.

51979011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4735 (or 4712 counting only the distinct ones).

The product of its (nonzero) digits is 2835, while the sum is 33.

The square root of 51979011 is about 7209.6470787411. The cubic root of 51979011 is about 373.2008899000.

The spelling of 51979011 in words is "fifty-one million, nine hundred seventy-nine thousand, eleven".